Film-coated three-dimensional bag positioning device

Abstract

The utility model relates to the technical field of packaging bags, in particular to a film-covered three-dimensional bag positioning device which comprises a fixed frame installed on film covering equipment, two sets of symmetrically-arranged air cylinders are installed on the top of the fixed frame, a movable frame is fixedly arranged at the bottoms of the air cylinders and is in a U shape, and adjusting plates are arranged at the two ends of the movable frame in a sleeved mode. The bottoms of the two sets of adjusting plates are jointly provided with an opening mechanism for positioning a bag body to a fixed position on the conveying belt, and a detection assembly is fixedly arranged on the side, close to the bottom, of the fixing frame. The opening mechanism comprises a mounting plate mounted at the bottoms of the two adjusting plates, a first motor is mounted in the center of the surface of the mounting plate, and a rotary disc is fixedly arranged on an output shaft of the first motor. According to the film-coated three-dimensional bag positioning device, the fixing effect is achieved on the four corners of the inner side of a bag body, at the moment, the whole bag body is fixed, in this way, collapse is not likely to happen during follow-up bag body film coating operation, and the three-dimensional bag film coating quality and the product yield can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag manufacturing, in particular to a positioning device for a film-coated three-dimensional bag. Background Art

[0002] The characteristic of laminated three-dimensional bags is that they undergo a lamination process during production. This involves applying a thin film to the surface of the bag to enhance its moisture-proof, dust-proof, and wear-resistant properties, while also improving its appearance. Existing laminated three-dimensional bags require the bag to be fixed to the laminating equipment during the laminating process. However, due to the bag's relatively soft body, the existing positioning device often causes the bag to collapse during the securing process, resulting in lamination failure and reduced product yield. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a positioning device for a coated three-dimensional bag, which solves the technical problem that the three-dimensional bag is prone to collapse during coating.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a positioning device for a three-dimensional film bag, comprising a fixed frame installed on a film laminating device, two sets of symmetrically arranged cylinders are installed on the top of the fixed frame, a movable frame is fixed at the bottom of the cylinder, the movable frame is "U"-shaped, and adjustment plates are sleeved on both ends of the movable frame. The bottoms of the two sets of adjustment plates are jointly installed with a spreading mechanism for positioning the bag body in a fixed position on the conveyor belt, and a detection component is fixed on the side of the fixed frame close to the bottom;

[0005] The expansion mechanism includes a mounting plate installed at the bottom of the two groups of adjustment plates, a motor 1 is installed at the center of the surface of the mounting plate, a turntable is fixed on the output shaft of the motor 1, both sides of the turntable are movably connected with a connecting rod transmission assembly, and the ends of the two groups of connecting rod transmission assemblies away from the turntable are movably connected with a positioning rod, and the positioning rod is slidably set at the bottom of the mounting plate.

[0006] Preferably, the connecting rod transmission assembly includes a connecting rod 1 whose one end is hinged to the edge of the bottom surface of the turntable, the other end of the connecting rod 1 is hinged to one end of the movable block, the other end of the movable block is hinged to one end of two connecting rods 2, and the other ends of the two connecting rods 2 are respectively rotatably connected to the top of the two positioning rods.

[0007] Preferably, a slider 1 and a slider 2 are fixed to the top of the positioning rod and the movable block respectively, and the slider 1 and the slider 2 are slidably arranged in a sliding hole 1 and a sliding hole 2 opened on the mounting plate respectively.

[0008] Preferably, the surfaces of the movable frame close to both ends are threadedly connected with adjustment bolts.

[0009] Preferably, the detection component includes a mounting frame installed on the bottom side wall of the fixing frame, the mounting frame is fixedly provided with a second motor, the output shaft of the second motor is fixedly provided with a baffle, and a photoelectric sensor is installed on the baffle.

[0010] Preferably, the bag is located in the middle of the conveyor belt.

[0011] By means of the above technical solution, the present invention provides a positioning device for a laminated three-dimensional bag, which has at least the following beneficial effects:

[0012] 1. The positioning device for laminating three-dimensional bags is provided with an expansion mechanism. It is driven by a motor and the four positioning rods are evenly moved in four directions under the action of a connecting rod transmission assembly, thereby forming a fixing effect on the four corners inside the bag body. At this time, the bag body is fixed as a whole, so that the subsequent bag laminating operation is not prone to collapse, which can improve the laminating quality of the three-dimensional bag and the yield rate of the product.

[0013] 2. The laminating three-dimensional bag positioning device is equipped with a detection component. When the bag moves to the laminating station with the conveyor belt, the blocking piece and the photoelectric sensor are used in combination to detect whether the bag has moved into place. It has the function of material level detection and can stop the movement of the bag to avoid the problem of deviation in subsequent lamination caused by excessive movement of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a structural diagram of the bottom of the support mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the detection component of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the connection between the movable block and the slider 2 of the utility model;

[0019] Reference numerals:

[0020] 1. Fixed frame; 2. Cylinder; 3. Movable frame; 4. Guide column; 5. Guide sleeve; 6. Adjustment plate; 7. Adjustment bolt; 8. Opening mechanism; 801. Mounting plate; 802. Motor 1; 803. Turntable; 804. Connecting rod 1; 805. Movable block; 806. Connecting rod 2; 807. Positioning rod; 808. Slider 1; 809. Slider 2; 9. Detection assembly; 901. Mounting frame; 902. Motor 2; 903. Block; 904. Photoelectric sensor; 10. Conveyor belt; 11. Bag body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] A laminated three-dimensional bag is a packaging bag with a three-dimensional appearance and a certain shape, usually used for packaging of food, daily necessities and other products.

[0023] Example 1:

[0024] Based on the technical defects of the existing technology that the film is prone to collapse during lamination, please refer to Figures 1-4 The utility model provides a positioning device for laminating three-dimensional bags, which uses four positioning rods 807 to fix the four corners inside the bag body 11. At this time, the bag body 11 is fixed as a whole, so that the bag body 11 is not prone to collapse during subsequent laminating operations, which can improve the laminating quality of the three-dimensional bag and the yield rate of the product. The device includes a fixed frame 1 installed on the laminating equipment, and two groups of symmetrically arranged cylinders 2 are installed on the top of the fixed frame 1. A movable frame 3 is fixed at the bottom of the cylinder 2. The movable frame 3 is "U" shaped, and both ends of the movable frame 3 are sleeved with adjustment Plate 6, the bottom of the two sets of adjustment plates 6 are jointly installed with an opening mechanism 8 for positioning the bag body 11 in a fixed position on the conveyor belt 10, and a detection component 9 is fixed on the side of the fixing frame 1 close to the bottom; when in use, the bag body 11 moves with the conveyor belt 10 to the working position of the laminating equipment, and after the detection component 9 detects that the bag body 11 is in place, the conveyor belt 10 is stopped, and then the cylinder 2 is used to drive the movable frame 3 to move downward, so that the positioning rod 807 at the bottom of the opening mechanism 8 enters the bag body 11, and then the positioning rod 807 is used to achieve positioning support for the inner side of the bag body 11.

[0025] To solve the problem that the bag 11 is prone to collapse during lamination, please refer to Figure 2The opening mechanism 8 includes a mounting plate 801 mounted at the bottom of the two groups of adjusting plates 6, a motor 802 is mounted at the center of the surface of the mounting plate 801, and a turntable 803 is fixed on the output shaft of the motor 802. Both sides of the turntable 803 are movably connected with a connecting rod transmission assembly, and the ends of the two groups of connecting rod transmission assemblies away from the turntable 803 are movably connected with a positioning rod 807, and the positioning rod 807 is slidably set at the bottom of the mounting plate 801; the motor 802 is used to work and drive the turntable 803 to rotate, and the turntable 803 drives the four positioning rods 807 to move at a uniform speed in four directions through the two groups of connecting rod transmission assemblies, thereby contacting the four corners on the inside of the bag body 11 at the same time, thereby realizing the positioning and fixation of the bag body 11, so that the bag body 11 is not prone to collapse during the subsequent film coating operation.

[0026] To simplify the number of transmission components, please refer to Figure 2 The connecting rod transmission assembly includes a connecting rod 804 with one end hinged to the edge of the bottom surface of the turntable 803, the other end of the connecting rod 804 is hinged to one end of the movable block 805, the other end of the movable block 805 is hinged to one end of two connecting rods 806, and the other ends of the two connecting rods 806 are respectively rotatably connected to the top of the two positioning rods 807; when the turntable 803 rotates, the movable block 805 can be moved by the hinge action of the connecting rod 804, and the movable block 805 can move the positioning rod 807 through the hinge action of the connecting rod 806, which can synchronously drive the four positioning rods 807 to move, and the entire transmission structure is simple, reliable and easy to use.

[0027] In order to solve the guiding problem of the movement of the positioning rod 807 and the movable block 805, a slider 1 808 and a slider 2 809 are fixed on the top of the positioning rod 807 and the movable block 805 respectively. The slider 1 808 and the slider 2 809 are respectively slidably set in the sliding hole 1 and the sliding hole 2 opened on the mounting plate 801; under the action of the slider 1 808 and the slider 2 809, the positioning rod 807 and the movable block 805 can only move along the direction of the sliding hole 1 and the sliding hole 2, thereby playing the role of limiting guidance.

[0028] In order to facilitate the adjustment of the position of the spreading mechanism 8 , adjusting bolts 7 are threadedly connected to the surfaces of the movable frame 3 near both ends.

[0029] To ensure that the opening mechanism 8 can smoothly fix the bag body 11, the bag body 11 is placed in the middle position of the conveyor belt 10; in this way, after the bag body 11 is moved into place, the opening mechanism 8 moves downward, and the positioning rod 807 at its bottom can be just inserted into the bag body 11, thereby facilitating the subsequent fixed support of the bag body 11.

[0030] Example 2:

[0031] When the bag body 11 is being coated, it is necessary to accurately move the bag body 11 to the working position of the coating equipment. To detect the position of the bag body 11, please refer to Figure 3 The detection component 9 includes a mounting frame 901 installed on the bottom side wall of the fixing frame 1, and a second motor 902 is fixed on the mounting frame 901. A baffle 903 is fixed on the output shaft of the second motor 902, and a photoelectric sensor 904 is installed on the baffle; when the bag body 11 moves to the laminating station with the conveyor belt 10, the baffle 903 and the photoelectric sensor 904 are used in combination to detect whether the bag body 11 has moved into place. When the lamination of the bag body 11 is completed, the second motor 902 is used to drive and remove the baffle 903. At this time, the bag body 11 can smoothly enter the next process.

[0032] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a film-coated three-dimensional bag, comprising a fixing frame (1) mounted on a film-coating device, characterized in that: Two groups of symmetrically arranged cylinders (2) are installed on the top of the fixed frame (1), and a movable frame (3) is fixed at the bottom of the cylinder (2). The movable frame (3) is "U"-shaped, and both ends of the movable frame (3) are sleeved with adjustment plates (6). The bottoms of the two groups of adjustment plates (6) are jointly installed with a support mechanism (8) for positioning the bag body (11) at a fixed position on the conveyor belt (10). A detection component (9) is fixed on one side of the fixed frame (1) close to the bottom. The spreading mechanism (8) comprises a mounting plate (801) mounted on the bottom of the two groups of adjustment plates (6); a motor (802) is mounted at the center of the surface of the mounting plate (801); a turntable (803) is fixedly provided on the output shaft of the motor (802); both sides of the turntable (803) are movably connected to connecting rod transmission assemblies; one end of the two groups of connecting rod transmission assemblies away from the turntable (803) is movably connected to a positioning rod (807); and the positioning rod (807) is slidably arranged at the bottom of the mounting plate (801).

2. The film-coated three-dimensional bag positioning device according to claim 1, characterized in that: The connecting rod transmission assembly includes a connecting rod 1 (804) with one end hinged to the edge of the bottom surface of the turntable (803), the other end of the connecting rod 1 (804) is hinged to one end of the movable block (805), the other end of the movable block (805) is hinged to one end of two connecting rods 2 (806), and the other ends of the two connecting rods 2 (806) are respectively rotatably connected to the top of two positioning rods (807).

3. The positioning device for a laminated three-dimensional bag according to claim 2, characterized in that: The tops of the positioning rod (807) and the movable block (805) are respectively fixed with a slider 1 (808) and a slider 2 (809), and the slider 1 (808) and the slider 2 (809) are respectively slidably arranged in a sliding hole 1 and a sliding hole 2 opened on the mounting plate (801).

4. The film-coated three-dimensional bag positioning device according to claim 1, characterized in that: The surfaces of the movable frame (3) close to both ends are threadedly connected with adjustment bolts (7).

5. The positioning device for a laminated three-dimensional bag according to claim 1, characterized in that: The detection assembly (9) comprises a mounting frame (901) mounted on the bottom side wall of the fixing frame (1); a second motor (902) is fixedly mounted on the mounting frame (901); a baffle (903) is fixedly mounted on the output shaft of the second motor (902); and a photoelectric sensor (904) is mounted on the baffle.

6. The positioning device for a laminated three-dimensional bag according to claim 1, characterized in that: The bag body (11) is located in the middle of the conveyor belt (10).

Images